光致电子转移(ET)是有机光电器件中载流子光生最重要的过程。在基于偶氮化合物的层状光感受器中,载流子光生通过空穴传输材料 (HTM) 的掺入而敏感。我们研究了这个过程以阐明高度敏化的机制。首先,测量并比较层状光感受器和载流子生成层的光致 ET 效率和整体量子效率。HTM 增强光诱导 ET 的结果意味着 HTM 催化作用以减少活化能。尽管这种外在 ET 独立于电场发生,但随后的成对解离取决于电场。下一个,通过使用 50 多个光感受器在很宽的范围内改变能隙,研究了 ET 的能隙依赖性。测量的效率针对能隙绘制,其中未观察到倒置区域。
ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, AND ELECTROCHROMIC ELEMENT
申请人:Goto Daisuke
公开号:US20180208834A1
公开(公告)日:2018-07-26
An electrochromic compound represented by the following formula (1) is provided:
where each of R
1
to R
9
and Ar
1
to Ar
6
independently represents one of a hydrogen atom, a halogen atom, a monovalent organic group, a group in which two or more aryl and/or heteroaryl groups are bound to each other via a covalent bond, a group in which two or more aryl and/or heteroaryl groups are condensed with each other to form a ring, and a polymerizable functional group; and at least one of Ar
1
to Ar
6
represents an aryl group, a heteroaryl group, a group in which two or more aryl and/or heteroaryl groups are bound to each other via a covalent bond, or a group in which at least two aryl or heteroaryl groups are condensed with each other to form a ring.
Electrochromic element, optical filter, lens unit, imaging apparatus, and window member
申请人:CANON KABUSHIKI KAISHA
公开号:US10444588B2
公开(公告)日:2019-10-15
Provided is an electrochromic element, including: a pair of electrodes; and an electrochromic layer disposed between the pair of electrodes and containing a plurality of kinds of organic electrochromic compounds, in which: at least one kind of the plurality of kinds of organic electrochromic compounds includes an organic electrochromic compound having an absorption peak in a wavelength region of 700 nm or more during coloring thereof; and when an optical density in a decolored state thereof is defined as 0, a fluctuation ratio of a transmittance in a wavelength region of from 650 nm or more to 700 nm or less with respect to a central transmittance is within ±15% at an optical density of 0.3.
Electrochromic compound, electrochromic composition, and electrochromic element
申请人:Goto Daisuke
公开号:US10975296B2
公开(公告)日:2021-04-13
An electrochromic compound represented by the following formula (1) is provided:
where each of R1 to R9 and Ar1 to Ar6 independently represents one of a hydrogen atom, a halogen atom, a monovalent organic group, a group in which two or more aryl and/or heteroaryl groups are bound to each other via a covalent bond, a group in which two or more aryl and/or heteroaryl groups are condensed with each other to form a ring, and a polymerizable functional group; and at least one of Ar1 to Ar6 represents an aryl group, a heteroaryl group, a group in which two or more aryl and/or heteroaryl groups are bound to each other via a covalent bond, or a group in which at least two aryl or heteroaryl groups are condensed with each other to form a ring.